The Catatumbo Lightning, Venezuela, City natural fireworks is an atmospheric phenomenon. It occurs in an area located over the mouth of the Catatumbo River where it empties into Lake Maracaibo. The frequent, powerful flashes of lightning over this relatively small area are considered to be the world's largest single generator of tropospheric ozone, ozone that does not replenish the stratospheric ozone layer. It originates from a mass of storm clouds that create a voltaic arc. (wikipedia.org)

CATATUMBO LIGHTNING: Over the Catatumbo River in Venezuela, more than 40,000 bolts ripped across the night sky, as many as 300 nights a year for 9 hours at a time. Occurring so frequently, the phenomenon became known as "Relampago de Catatumbo", & was credited w/ causing English explorer Sir Francis Drake to abandon a sneak attack on the city of Maracaibo in 1595 when lightning betrayed his ships to the Spanish garrison. In 2010, it took a brief respite, but has since resumed.